Home / 3,311.25-4,571.55-2,134.41

Finding the Fourth Proportional to 3,311.25, 4,571.55 and 2,134.41

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Solution

The fourth proportional to 3,311.25, 4,571.55 and 2,134.41 is: 2,946.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.25 : 4,571.55 = 2,134.41 : x
  2. Step 2: Convert to fraction form
    3,311.25/4,571.55 = 2,134.41/x
  3. Step 3: Cross multiply
    3,311.25x = 4,571.55 × 2,134.41
  4. Step 4: Simplify right side
    3,311.25x = 9,757,562.04
  5. Step 5: Solve for x
    x = 9,757,562.04/3,311.25
  6. Step 6: Final answer
    x = 2,946.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.